You could convert MIDI file to M4R that could be used in iPhone as ringtone. MP3 files can contain valuable descriptive information, including title, artist, copyright etc. This information is known as ID3 tags. MIDI to MP3 Converter can supply converted files with such information. There is a built-in ID3 tag editor that works with individual files, as well as with groups of files. show midi to mp3 online use this link converting midi to mp3